This article perfectly incapsulates everything I'm feeling right now: tired, burnt out, spiritually low, spread too thin, resentful and not a cheerful giver. 

It seems like everyone demands too much out of me, whether it be at work, with my parents, or my friends. At the same time, I do too much for everybody and I spread myself too thin. It's not that I feel resentment of people not doing things for me since I feel pretty independent and rarely ask others for help (excepy maybe Michael when I force him to do my dishes.) The problem is that I'm not setting my boundaries. It is impossible for me to be there for everybody all of the time. I've always had a hard time saying no to people because I don't want to let them down but also, because I'm afraid if I do, I will lose them. It's not selfish to say no, to retreat and take some time yourself because in that time, you can heal and recuperate. If you don't, you let yourself get fatigued, bogged down by other people, and you start doing things out of compliance and not out of your own free will. In the end, it makes you resent the people who ask for things. 

God said that when you give, give cheerfully. I've beem giving a lot lately but I don't feel at all cheerful. Maybe it's time to retreat and take some time for myself, spend a little more time with God and just mentally and physically recover.